Conducting detailed survey including preliminary investigation, net level survey, taking longitudinal sections and cross sections along the alignment and detailed final survey including preparation of designs, drawings and estimates of distributory network including minors or sub-minors or field channels by conducting detailed block level survey for an extent 35,220 acres to identify a minimum net ayacut of 29,937 acres by proposing a ph at pragallapalli village, dummugudem mandal of bhadradri kothagudem district on left bank of sitamma sagar multi purpose project.(2nd call)